title: Photonic-integrated circuit for continuous-wave THz generation.
abstract: We demonstrate a photonic-integrated circuit for continuous-wave (cw) terahertz (THz) generation. By comprising two lasers and an optical phase modulator on a single chip, the full control of the THz signal is enabled via a unique bidirectional operation technique. Integrated heaters allow for continuous tuning of the THz frequency over 570 GHz. Applied to a coherent cw THz photomixing system operated at 1.5 μm optical wavelength, we reach a signal-to-noise ratio of 44 dB at 1.25 THz, which is identical to the performance of a standard system based on discrete components.
authors.forename: Michael
authors.initials: M
authors.lastname: Theurer
authors.forename: Thorsten
authors.initials: T
authors.lastname: Göbel
authors.forename: Dennis
authors.initials: D
authors.lastname: Stanze
authors.forename: Ute
authors.initials: U
authors.lastname: Troppenz
authors.forename: Francisco
authors.initials: F
authors.lastname: Soares
authors.forename: Norbert
authors.initials: N
authors.lastname: Grote
authors.forename: Martin
authors.initials: M
authors.lastname: Schell